Chemistry, 27.09.2019 04:00 Senica

As a technician in a large pharmaceutical research firm, you need to produce 250. ml of a potassium dihydrogen phosphate buffer solution of ph = 7.05. the pka of h2po4− is 7.21. you have the following supplies: 2.00 l of 1.00 m kh2po4 stock solution, 1.50 l of 1.00 m k2hpo4 stock solution, and a carboy of pure distilled h2o. how much 1.00 m kh2po4 will you need to make this solution? (assume additive volumes.)

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 04:30

In which phase(s) do the molecules take the shape of the container?

Answers: 1

Answer

Chemistry, 22.06.2019 23:10

Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer

Answers: 3

Answer

Chemistry, 23.06.2019 04:00

How much energy is required to vaporize 2 kg of copper? a 4730 kj b 207kj c 9460 kj d 414kj

Answers: 1

Answer

Chemistry, 23.06.2019 07:00

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table?

Answers: 2

Answer

You know the right answer?

As a technician in a large pharmaceutical research firm, you need to produce 250. ml of a potassium...

Questions